DCS_V1.0/UI/Main/MainTop.py

import sys
sys.path.append('../')
from PyQt5 import QtWidgets
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap, QIcon
from utils import Globals

class MainTop(QtWidgets.QWidget):
    def __init__(self, MainWindow):
        super().__init__()
        self.MainWindow = MainWindow
        self.setupUi()
        self.setAttribute(Qt.WA_StyledBackground, True)
        self.setupSearchListeners()
        # self.trendWidget = TrendWidgets()

    def setupUi(self):

        self.iconLabol = QtWidgets.QLabel(self)
        self.iconLabol.setObjectName("iconLabol")

        self.titleLabel = QtWidgets.QLabel(self)
        self.titleLabel.setObjectName("titleLabel")


        self.searchEdit = QtWidgets.QLineEdit()
        action = QtWidgets.QAction(self)
        action.setIcon(QIcon('./Static/search.png'))
        self.searchEdit.addAction(action, QtWidgets.QLineEdit.LeadingPosition)
        self.searchEdit.setSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
        self.searchEdit.setObjectName('searchEdit')
        font = self.searchEdit.font()  
        font.setPointSize(15)               
        self.searchEdit.setFont(font)


        self.searchEdit.textChanged.connect(self.searchEditTextChanged)
        # print(Globals.getValue('SearchWidget'))
        self.minBtn = QtWidgets.QPushButton(QIcon('./Static/min.png'), '' ,self)
        self.minBtn.setObjectName("minBtn")

        self.maxBtn = QtWidgets.QPushButton(QIcon('./Static/normal.png'), '' ,self)
        self.maxBtn.setObjectName("maxBtn")

        self.closeBtn = QtWidgets.QPushButton(QIcon('./Static/close.png'), '' ,self)
        self.closeBtn.setObjectName("closeBtn")

        self.iconLabol.setPixmap(QPixmap('./Static/zhjt.png').scaled(50,50))
        self.titleLabel.setText("信号发生装置")

        self.closeBtn.clicked.connect(self.MainWindow.close)
        self.minBtn.clicked.connect(self.MainWindow.showMinimized)
        self.maxBtn.clicked.connect(self.showMax)

        self.horizontalLayout = QtWidgets.QHBoxLayout(self)
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.horizontalLayout.setSpacing(15)
        self.horizontalLayout.setContentsMargins(20, 10, 20, 10)
        self.horizontalLayout.addWidget(self.iconLabol)
        self.horizontalLayout.addWidget(self.titleLabel)
        self.horizontalLayout.addWidget(QtWidgets.QSplitter())
        self.horizontalLayout.addWidget(self.searchEdit)
        self.horizontalLayout.addWidget(QtWidgets.QSplitter())
        self.horizontalLayout.addWidget(self.minBtn)
        self.horizontalLayout.addWidget(self.maxBtn)
        self.horizontalLayout.addWidget(self.closeBtn)

        # self.horizontalLayout.setStretch(0, 1)
        self.horizontalLayout.setStretch(1, 3)
        self.horizontalLayout.setStretch(2, 3)
        self.horizontalLayout.setStretch(3, 5)
        self.horizontalLayout.setStretch(4, 5)

    def searchEditTextChanged(self, text):
        # 获取当前活动界面的索引
        currentIndex = self.MainWindow.rightWidget.currentIndex()
        
        # 检查是否在趋势界面
        if currentIndex == 2:  # 趋势界面
            trendWidget = self.MainWindow.rightWidget.widget(2)
            if hasattr(trendWidget, 'performSearch'):
                trendWidget.performSearch(text)
            elif hasattr(trendWidget, 'filterVarList'):
                trendWidget.filterVarList(text)
            return
        
        # 检查是否在控制系统界面
        if currentIndex == 6:  # 控制系统界面
            controlWidget = self.MainWindow.rightWidget.widget(6)
            if hasattr(controlWidget, 'searchRules'):
                controlWidget.searchRules(text)
            return
        
        # 获取当前活动的变量表格
        currentVarWidget = self.getCurrentVarTable()
        
        if currentVarWidget:
            # 在变量管理界面，直接搜索当前表格
            self.performVarTableSearch(currentVarWidget, text)
        else:
            # 使用原有逻辑处理其他界面
            self.performLegacySearch(text)
    
    def getCurrentVarTable(self):
        """获取当前显示的变量表格Widget"""
        # 检查当前是否在变量管理界面
        if self.MainWindow.rightWidget.currentIndex() != 1:
            return None
        
        # 获取变量管理TabWidget
        varManageTabWidget = self.MainWindow.rightWidget.widget(1)
        
        # 获取当前活动的Tab
        currentTabIndex = varManageTabWidget.currentIndex()
        currentTabWidget = varManageTabWidget.widget(currentTabIndex)
        
        # 检查是否是支持搜索的变量表格（排除Profibus）
        if currentTabIndex == 8:  # Profibus界面，不支持搜索
            return None
        
        # 检查是否有变量表格相关属性
        if hasattr(currentTabWidget, 'varView') or hasattr(currentTabWidget, 'model'):
            return currentTabWidget
        
        return None
    
    def performVarTableSearch(self, varWidget, text):
        """对变量表格执行搜索"""
        try:
            # 优先使用统一的performSearch接口
            if hasattr(varWidget, 'performSearch'):
                varWidget.performSearch(text)
            
            # VarWidgets类型（Modbus相关和其他继承类）
            elif hasattr(varWidget, 'proxy') and hasattr(varWidget, 'on_lineEdit_textChanged'):
                # 设置搜索列为变量名列（通常是第3列）
                if hasattr(varWidget, 'on_comboBox_currentIndexChanged'):
                    varWidget.on_comboBox_currentIndexChanged(3)
                varWidget.on_lineEdit_textChanged(text)
                
        except Exception as e:
            print(f"搜索执行失败: {e}")
    
    def performLegacySearch(self, text):
        """执行原有的搜索逻辑"""
        index = Globals.getValue('SearchWidget')
        
        if index == 0:
            self.MainWindow.rightWidget.widget(index).on_comboBox_currentIndexChanged(1)
            self.MainWindow.rightWidget.widget(index).on_lineEdit_textChanged(text)
        elif index == 2:  # 趋势界面
            if hasattr(self.MainWindow.rightWidget.widget(index), 'filterVarList'):
                self.MainWindow.rightWidget.widget(index).filterVarList(text)
        elif index == 3:
            self.MainWindow.rightWidget.widget(index).on_comboBox_currentIndexChanged(1)
            self.MainWindow.rightWidget.widget(index).on_lineEdit_textChanged(text)
        elif index == 6:
            self.MainWindow.rightWidget.widget(index).on_comboBox_currentIndexChanged(1)
            self.MainWindow.rightWidget.widget(index).on_lineEdit_textChanged(text)
        elif index == 8:
            self.MainWindow.rightWidget.widget(index).on_comboBox_currentIndexChanged(0)
            self.MainWindow.rightWidget.widget(index).on_lineEdit_textChanged(text)
      
    def showMax(self):
        if self.MainWindow.isMaximized():
            self.MainWindow.showNormal()
            self.maxBtn.setIcon(QIcon('./Static/max.png'))
            self.MainWindow.verticalLayout.setStretch(0, 1)
            self.MainWindow.verticalLayout.setStretch(1, 15)
        else:
            self.MainWindow.showMaximized()
            self.MainWindow.verticalLayout.setStretch(0, 1)
            self.MainWindow.verticalLayout.setStretch(1, 18)
            self.maxBtn.setIcon(QIcon('./Static/normal.png'))

    def mouseDoubleClickEvent(self, e):   # 双击
        self.showMax()
    
    def setupSearchListeners(self):
        """设置搜索相关的事件监听"""
        try:
            # 监听主界面切换
            self.MainWindow.rightWidget.currentChanged.connect(self.onMainWidgetChanged)
            
            # 监听变量管理Tab切换
            if hasattr(self.MainWindow, 'varManageTabWidget'):
                self.MainWindow.varManageTabWidget.currentChanged.connect(self.onVarTabChanged)
        except Exception as e:
            print(f"设置搜索监听失败: {e}")
    
    def onMainWidgetChanged(self, index):
        """主界面切换时更新搜索状态"""
        self.updateSearchPlaceholder()
        self.searchEdit.clear()
    
    def onVarTabChanged(self, index):
        """变量管理Tab切换时更新搜索状态"""
        if self.MainWindow.rightWidget.currentIndex() == 1:  # 在变量管理界面
            self.updateSearchPlaceholder()
            self.searchEdit.clear()
    
    def updateSearchPlaceholder(self):
        """根据当前界面更新搜索框占位符和状态"""
        try:
            currentIndex = self.MainWindow.rightWidget.currentIndex()
            
            if currentIndex == 2:
                # 趋势界面
                self.searchEdit.setPlaceholderText("搜索历史变量...")
                self.searchEdit.setEnabled(True)
                
            elif currentIndex == 1:
                # 变量管理界面
                currentVarWidget = self.getCurrentVarTable()
                if currentVarWidget:
                    # 支持搜索的变量表格
                    placeholder = self.getVarWidgetPlaceholder(currentVarWidget)
                    self.searchEdit.setPlaceholderText(placeholder)
                    self.searchEdit.setEnabled(True)
                else:
                    # 不支持搜索的Tab（如Profibus）
                    self.searchEdit.setPlaceholderText("当前界面不支持搜索")
                    self.searchEdit.setEnabled(False)
                    
            elif currentIndex == 6:
                # 控制系统界面
                self.searchEdit.setPlaceholderText("搜索规则...")
                self.searchEdit.setEnabled(True)
                    
            else:
                # 其他界面
                self.searchEdit.setPlaceholderText("搜索...")
                self.searchEdit.setEnabled(True)
                
        except Exception as e:
            print(f"更新搜索占位符失败: {e}")
            self.searchEdit.setPlaceholderText("搜索...")
            self.searchEdit.setEnabled(True)
    
    def getVarWidgetPlaceholder(self, varWidget):
        """根据变量Widget类型获取搜索占位符"""
        try:
            # 获取当前Tab索引来确定类型
            varManageTabWidget = self.MainWindow.rightWidget.widget(1)
            currentTabIndex = varManageTabWidget.currentIndex()
            
            placeholderMap = {
                0: "搜索Modbus TCP主站变量...",
                1: "搜索Modbus TCP从站变量...", 
                2: "搜索Modbus RTU主站变量...",
                3: "搜索Modbus RTU从站变量...",
                4: "搜索IO变量...",
                5: "搜索TC/RTD变量...",
                6: "搜索HART读取变量...",
                7: "搜索HART模拟变量...",
                9: "搜索远程通讯变量..."
            }
            
            return placeholderMap.get(currentTabIndex, "搜索变量...")
            
        except Exception as e:
            print(f"获取占位符失败: {e}")
            return "搜索变量..."